Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481234 | Heat pump system for air conditioning adaptable to cold regions | Guoyuan Ma, Yi Jiang | 2002-11-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481234 | Heat pump system for air conditioning adaptable to cold regions | Guoyuan Ma, Yi Jiang | 2002-11-19 |